{"cve":"CVE-2021-27471","nvd":{"published":"2022-03-23T20:15:09.037","modified":"2026-06-17T03:44:55.723","status":"Modified","description":"The parsing mechanism that processes certain file types does not provide input sanitization for file paths. This may allow an attacker to craft malicious files that, when opened by Rockwell Automation Connected Components Workbench v12.00.00 and prior, can traverse the file system. If successfully exploited, an attacker could overwrite existing files and create additional files with the same permissions of the Connected Components Workbench software. User interaction is required for this exploit to be successful.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","score":8.6},"cwes":["CWE-22"],"references":["https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1131435","https://www.cisa.gov/uscert/ics/advisories/icsa-21-133-01","https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1131435","https://www.cisa.gov/uscert/ics/advisories/icsa-21-133-01"],"products":["rockwellautomation:connected_components_workbench"],"source":"nvd","synced_at":"2026-10-19T21:29:06.454770966+00:00"},"epss":{"cve":"CVE-2021-27471","score":0.02856,"percentile":0.86736,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}